AP PSYCHOLOGY

Detailed explanation-1: -Gage’s mouth was open at the moment of the explosion, and the front and back of his skull temporarily “hinged” apart as the iron entered from below, then were pulled back together by the resilience of soft tissues once the iron had exited through the top of Gage’s head.

Detailed explanation-2: -The passage of the tamping iron caused widespread damage to the white matter connections throughout Gage’s brain, which likely was a major contributor to the behavioral changes he experienced.

Detailed explanation-3: -Through Harlow’s reports, it can be suggested that Gage’s personality changed due to the accident he endured. The accounts imply that the injury lead to a loss of social inhibition, meaning that Gage would behave in ways which were considered inappropriate.